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All results from a given calculation for C2H4N2O2 (Oxalamide)

using model chemistry: G3B3

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2H 1Ag
Energy calculated at G3B3
 hartrees
Energy at 0K-338.416434
Energy at 298.15K-338.409116
Nuclear repulsion energy 
The energy at 298.15K was derived from the energy at 0K and an integrated heat capacity that used the calculated vibrational frequencies.
Vibrational Frequencies calculated at B3LYP/6-31G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 Ag 3721 3573 0.00      
2 Ag 3586 3443 0.00      
3 Ag 1827 1755 0.00      
4 Ag 1612 1548 0.00      
5 Ag 1424 1368 0.00      
6 Ag 1111 1067 0.00      
7 Ag 770 740 0.00      
8 Ag 532 511 0.00      
9 Ag 399 383 0.00      
10 Au 688 661 0.70      
11 Au 480 461 200.01      
12 Au 327 314 356.37      
13 Au 94 90 0.71      
14 Bg 816 784 0.00      
15 Bg 671 644 0.00      
16 Bg 332 319 0.00      
17 Bu 3721 3573 150.48      
18 Bu 3586 3443 116.69      
19 Bu 1799 1727 566.50      
20 Bu 1613 1549 332.56      
21 Bu 1324 1271 130.13      
22 Bu 1103 1059 9.07      
23 Bu 574 551 22.95      
24 Bu 278 267 39.20      

Unscaled Zero Point Vibrational Energy (zpe) 16192.6 cm-1
Scaled (by 0.9603) Zero Point Vibrational Energy (zpe) 15549.7 cm-1
See section III.C.1 List or set vibrational scaling factors to change the scale factors used here.
See section III.C.2 Calculate a vibrational scaling factor for a given set of molecules to determine the least squares best scaling factor.
Rotational Constants (cm-1) from geometry optimized at B3LYP/6-31G*
ABC
0.18709 0.12395 0.07456

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/6-31G*

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.773 0.000
C2 0.000 -0.773 0.000
O3 1.041 1.421 0.000
O4 -1.041 -1.421 0.000
N5 -1.254 1.269 0.000
N6 1.254 -1.269 0.000
H7 -1.408 2.266 0.000
H8 -2.028 0.618 0.000
H9 1.408 -2.266 0.000
H10 2.028 -0.618 0.000

Atom - Atom Distances (Å)
  C1 C2 O3 O4 N5 N6 H7 H8 H9 H10
C11.54691.22582.42871.34802.39642.05162.03373.34962.4592
C21.54692.42871.22582.39641.34803.34962.45922.05162.0337
O31.22582.42873.52262.29962.69812.59023.17203.70502.2651
O42.42871.22583.52262.69812.29963.70502.26512.59023.1720
N51.34802.39642.29962.69813.56751.00891.01144.42473.7852
N62.39641.34802.69812.29963.56754.42473.78521.00891.0114
H72.05163.34962.59023.70501.00894.42471.76095.33524.4854
H82.03372.45923.17202.26511.01143.78521.76094.48544.2397
H93.34962.05163.70502.59024.42471.00895.33524.48541.7609
H102.45922.03372.26513.17203.78521.01144.48544.23971.7609

picture of Oxalamide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 O4 121.885 C1 C2 N6 111.601
C1 N5 H7 120.307 C1 N5 H8 118.413
C2 C1 O3 121.885 C2 C1 N5 111.601
C2 N6 H9 120.307 C2 N6 H10 118.413
O3 C1 N5 126.514 O4 C2 N6 126.514
H7 N5 H8 121.280 H9 N6 H10 121.280
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.545 -0.851   0.548
2 C 0.545 0.372   0.573
3 O -0.523 0.419   -0.500
4 O -0.523 -0.851   -0.508
5 N -0.740 0.419   -0.860
6 N -0.740 0.372   -0.871
7 H 0.348 0.576   0.426
8 H 0.370 -0.517   0.382
9 H 0.348 0.576   0.428
10 H 0.370 -0.517   0.383


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 0.000 0.000
CHELPG 0.000 0.000 0.003 0.003
AIM        
ESP 0.002 0.003 0.000 0.004


Electric Quadrupole moment
Quadrupole components in D Å


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 0.000 0.000 0.000
y 0.000 0.000 0.000
z 0.000 0.000 0.000


<r2> (average value of r2) Å2
<r2> 144.682
(<r2>)1/2 12.028